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Citric acid is dissolved into water to a final concentration of 50 mM.
What is the pH of the solution?
If the pH is adjusted to physiological pH, what is the concentration of all of the ionic species of citric acid in solution? (hint: there are four species)
Is citric acid a good buffer at physiological pH? State your reasoning
Problem- In the successful synthesis of polymer nylon-6,6 we have used monomers adipoyl chloride (0.5 mL) and 5% aqueous solution of 1,6-hexanediamine (8 mL). We have also used 10 mL of cyclohexane and 8 drops of 25% aqueous solution of sodium hyd..
In the first step of the synthesis of PABA, why was it necessary to add sodium acetate to have reaction of p-toluidine with acetic anhydride?
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
A coffee cup calorimeter contains 10.0 grams of water at 59.00 degrees C. If 3.00 grams Au at 15.20 degrees C is placed in the calorimeter, what is the final temperature of the water in the calorimeter. The specific heat of water is 4.18 J/g C; th..
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.890-g sample of Mg metal is added to 150.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many g of H2 are formed
Which of the following set of quantum numbers (ordered n,l,ml,ms) are possible for an electron in an atom
Calculate the pH during the titration of 25.1 mL of 0.565 M dimethylamine, (CH3)2NH with 0.170 M HCl after 14.2 mL of the acid have been added. Kb of dimethylamine = 5.4 x 10-4.
How many moles of sodium acetate must be added to 1.8 L of 0.25 M acetic acid to give a solution that has a pH equal to 4.68? Ignore the volume change due to the addition of sodium acetate.
a 45-year-old woman is receiving a combined modality treatment for the initial stage of breast cancer. state the two
Calculate the mass of ferrous ammonium sulfate you would need to add to a 100.00 mL volumetric flask to make a solution that is 59 ppm in Fe. Then, stock solution A is prepared by dissolving 183.5 mg of ferrous ammonium sulfate in water and diluti..
When investigating the effects of acid rain in your area, you find out a lake that is surprisingly resistant. Find out a lake that is surprisingly resistant to change in pH caused by acid rain. Utilizing what you have learned in this unit, explicate..
Using the Cahn-Ingold-Prelog sequence rules, assign priorities to the groups around the chiral carbon in carvone. Draw the structural formulas for (+)-carvone and (-)-carvone with the molecules oriented in the correct position to show the R and S ..
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